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Patented Nov. 15,1892.

PUMP.

W. H. SUNDERLAND.

(No Model.)

THE NDRms PETERS co, PHuTo-Ln'uo.. WASHING-mn. u, c.

UNITED STATES PATENT- OFFICE.

WILLIAM H. SUNDERLAND, OF MILLER, SOUTH DAKOTA.

PUMP.

SPECIFICATION forming part of Letters Patent No. 486,136, dated November15, 1892.

Application filed January 16, 1892. Serial No. 418,344. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM H. SUNDER- LAND, a citizen of the UnitedStates, residing at Miller, in the county of Hand and State of SouthDakota, have invented a new and useful Pump, of which the following is aspecification.

My invention relates to that class of pumps wherein a pair of plungersare reciprocated in opposite directions.

The object of my invention is to producea device which will be moresimple in construction and effective in operation than those heretoforein, use.

With this object in view my invention consists in the peculiar featuresand combinations of parts more fully described herein'- after, andpointed out in the claims.

In the accompanying drawings, Figure l represents a view in elevation ofmy complete device, parts of which are shown in dotted lines. Fig. 2represents a sectional elevation of one of the plungers. Fig. 3represents asectional elevation of one of the cylinders; Fig. 4, aperspective view of the plates to which the plun gers and cylinders aresecured.

The reference-letter A represents a pumpbase, journaled in the top ofwhich is a chaindisk F, having its periphery grooved to lnore securelyhold the links of the pump-chain. To the ends of the chain are securedpumpheads E, provided with the usual spout. Secured to the lower ends ofthe pump-heads E are hollow connecting pipes extending through thebase-plank and secured to hollow or tubular plungers B, which fit snuglyand work within vertical cylinders O, the upper ends of the plungersbeing su rmounted by screw-caps J, in the bottom of which aredownwardly-seating check-valves. The lower ends of the cylinders C arealso provided with downwardly-seating check-valves, which retain thewater in the cylinders as they are lifted. The lower ends of thecylinders are provided with flaring suction-glands H. The adjacent facesof the plungers and cylinders are provided with perforated lugs, thelugs on one plunger being secured to the saine plate D as the lugs onthe opposite cylinder. The same applies to the lugs of the otherplunger. It will thus be seen that when the plunger on the right-handside is raised the cylinder on the left-hand side of the plate is alsoraised, as they are both attached to the same plate D, as clearly shownin Fig. 1. This movement forces water up through the plunger on theleft-hand side of the plate, and when the movement is repeated water isforced through the connecting-tubes and out through the spout at thepump-head. The same description applies to the cylinder and plunger onthe right-hand side of the plate, and a continuous flow of Water is thusdischarged from the spouts on the pump-heads. It will thus be seen thatthe plungers and cylinders have a vertical movement, and analternately-reciprocating movement is thus kept up when the handle isactuated.

Having thus described my invention, what Iclaiin as new, and desire tosecure by Letters Patent, is-

l. A pump having a pair of cylinders located side by side and providedwith alternating reciprocating plungers, the plunger of one cylinderbeing directly connected to the cylinder of the other plunger,substantially as and for the purpose speciied.

2. A pump having a pair of cylinders provided With alternatingreciprocating hollow plungers, the plunger of one cylinder beingdirectly connected to the cylinder of the other plunger, substantiallyas described.

3. A pump provided with a pair of reciprocating plungers having lugs ontheir adjacent faces anda pair of cylinders also provided with lugs, incombination with a pair of plates, the lugs on one plunger being securedto the same plate as the lugs on the opposite cylinder, whereby theplunger of one pair reciprocates with the cylinder of the' oppositepair, substantially as described.

4. A pump having a pair of cylinders provided with reciprocating hollowplungers, the plunger of one cylinder being directly connected to thecylinder of the other plunger, and pump-heads secured to said plungers,substantially as described.

WILLIAM H. SNDERLAND.

